Coin-controlled pump for inflating bicycle-tires, &amp;c.



No. 636,782. Patented Nov. l4, I899. H. B. FARRAND.

COIN CONTROLLED PUMP FOB INFLATING BICYCLE TIRES, 8L0.

(Application filed Feb. 13, 1899.) (No Model.) 2 $heets8heat l.

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ZZQZ WQ No. 636,782. Patented Nov. l4, I899.

H. B. FARRAND.

COIN CONTROLLED PUMP FOR INFLATING BICYCLE TIRES, 8L0.

(Application filed Feb. 13, 1899.) (No Model.) 2 Sheets-Sheet 2.

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UNITED STATES PATENT OFFICE.

HARRY B. FARRAND, OF PHILADELPHIA, PENNSYLVANIA.

COIN-"CONTROLLED PUMP FOR'INFLATING BICYCLE-TIRES, soc.

SPECIFICATION forming part of Letters Patent No. 636,782, dated November 14, 1899. Application filed February 13,1899. erial No. 705,422. (No model.)

To all whom it may concern:

Be it known that I, HARRY B. FARRAND, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a certain new and useful Improvement in Coin- Oontrolled Pumps for Inflating Bicycle-Tires and the Like, of which the following is a specification.

My invention relates to a new and useful improvement in coin-controlled pumps for in-' fiating bicycle-tires and the like, and has for.

its object to provide an exceedingly simple and effective mechanism which cannot be put in operation until a coin, such as a cent, has been inserted in the slot provided therefor and which will thereafter so control the pump as to permit its being operated to inflate first one tire and then another and then automatically shut off further use of the pump.

With these endsin view this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claims. In order that those skilled in the art to which this invention appertains may understand how to make and use the same, the construction and operation will now be described .in detail, referring to the accompanying drawings, forming a part of this specification, in which-- Figure 1 is a sectional elevation showing the mechanism in its normal position, the pump beinglocked against use; Fig. 2, asimilar view showing the mechanism in the position assumed after the coin has been inserted and the pump-plunger has been partially elevated; Fig. 3, also a similar view, but showing the mechanism in the position assumed when the pump-plunger has been actuated sufficiently to create a pressure within the throw-off cylinder, and consequently the tire; Fig. 4, also a similar view, the pump-plunger being in its lowered position; Fig. 5, also a similar view showing the position of the mechanism assumed'upon the uncoupling of the first tire from the pump; and Fig. 6, a section at the line a: so of Fig. 1, the remainder of the mechanism being inelevation.

* In carrying out my invention as here embodied, A represents the barrel of the pump, which is suitably located, and within this barrel is fitted the usual plunger B, attached to the plunger-rod O,which latter passes upward and terminates in the handle D within easy reach of persons intending to inflate a bicyole-tire. Connected with the lower end of the pump-barrel is a pipe E, which leads to the throw-off cylinder F, said cylinder having fitted therein a plunger G, which is normally held in its lowered position by the spring H, the rod I passing upward for the purpose hereinafter set forth.

J is a connection leading from the lower portion of the throw-off cylinder, from which a suitable flexible tube may run to a convenient pointfor connection with a valve-tube of the bicycle-tire, and a ball-valve K is arranged to prevent the return of the air from the throw-ofi cylinder to the pump-barrel, but permit it to readily flow in the opposite dire'ction.

L is a'coin-receiver and is pivoted at M and so actuated by the spring N as to normally assume the position shown in Fig. 1,and when in this position the locking-pin 0, carried by the extension of this receiver, acts asa pawl to engage the teeth P, formed upon the plunger-rod C, so that so long as the coinreceiver remains in its normal position the pump-plunger cannot be operated. The coinreceiver is provided with a slot or chute Q, the upper end of which registers with the slot R, formed in the escutcheon, so that the coin passed through the last-named slot will enter this chute and fall to the position shown at a in Fig. 6, where it is prevented from further movement by abutting against the actuatingplate S, which latter is pivoted at M'and given a tendency to move in the direction indicated by the arrow by the spring U. This plate is provided with a pin V, so that when it is swung in the opposite direction to the arrow this pin will come in contact with the coin and through the medium thereof actuate the coin-receiver to swing it outward to the position shown in Figs. 2, 3, and 4, and the receiver will be heldin this last-named position by the pin W, carried thereby, being engaged by the outer notch of the series X, formed in the throw-0E plate Y. This throw-ofi' plate is pivoted at Z and is normally held in an elevated position by the spring I), and so long as the pin W remains in engagement with the notch X it follows that the locking-pin 0 will be held out of engagement with the ratchetteeth formed upon the plunger-rod 0, thus leaving said rod free to be moved up and down in the actuation of the pump.

A limited movement is provided for the plunger-rod before the ratchet-teeth P reach the locking-pin O, and this is utilized to give the initial movement to the actuating-plate S by the cam-pin d projecting from the plungerrod and riding against the cam edge of the actuating-plate, so that when the coin has been inserted within the receiver and the pumphandle is grasped and moved upward this initial movement of the pump-handle will cause the actuating-plate to force the coinreceiver rearward, as before stated, and thus carry the locking-pin out of the line of travel of the ratchet-teeth and permit a continuation of the actuation of the pump. Upon the first return movement of the actuating-plate after the coin-receiver has been engaged in the position shown in Figs. 2, 3, and 4 the outer edge of the actuating-plate will pass the coin and the latter will thereby be permitted to fall from the chute to any suitable receptacle. After this the further movements of the pump-handle will have no effect upon the mechanism other than to swing the actuatingplate to and fro, since the only connection between the actuating-plate and remaining mechanism is the coin prior to its falling from the chute. This continued operation of the pump will create a pressure within the throw-off cylinder and the tire connected therewith, and thus elevate the plunger G against the action of its spring H and carry upward the rod I. The upper end of this rod is looped, as shown at e, and serves asa pawl for engaging the tcethfandf, formed upon the throw-off plate. Then the rod I has been sufflcientlyelevated to cause the looped end 6 thereof to pass into engagement with the tooth f, it will remain in this position so long as the tire remains in connection with the throw-off cylinder, and therefore the operations of the pump maybe continued until the tire has been inflated to the desired degree; but when the tire has been disconnected from the throw-01f cylinder the pressure therein will be released and the plunger G moved downward by the spring I-I, during which movement the rod I will draw down the throw-off plate, and in so doing disengage the lower notch of the series X from the pin \V, and thereby permit the coinreceiver to be moved inward by its spring to the position shown in Fig. 5, where it will be again arrested and held by the engagement with said pin by the upper notch of the series X, as shown. Now when the throw-off cylinder is connected with the remaining tire of the bicycle and the pump is actuated to restore the pressure in said cylinder the rod I will be again moved upward, as before described, carrying its looped end into engagement with the tooth f, so that when this tire has been likewise inflated and disconnected from the throw-off cylinder the lowering of the pressure in said cylinder will cause the downward movement of the rod I, carrying with it the throw-off plate Y and so freeing the pin W as to permit the coin-receiver to swing inward to its normal position, thus bringing the locking-pin 0 within the field of travel of the ratchet-teeth P. This, as is obvious, will prevent any further operation of the pump and thereafter render it inactive until another coin has been inserted within the receiver, when the operations above described may be repeated.

By, this arrangement the two tires of a bicycle may be inflated by the insertion of one coin; but the pump will be automatically rendered inactive after these inflations have taken place. The extent to which the tire is inflated does not affect the mechanism, and each individual may determine the degree of inflation according to his own notion.

The entire mechanism, including the pump, is of course located within a suitable cabinet or case, unauthorized access thereto being prevented by a suitable lock.

Having thus fully described my invention, what I claim as new and useful is 1. A coin-controlled pump for inflating bicycle-tires, consisting of a suitable barrel, a plunger fitted therein, a rod connected with said plunger, a handle for actuating the rod, ratchet-teeth formed upon said rod, a coinreceiver adapted to be swung in one direction by a spring, a locking-pin carried by said receiver for normally preventing the actuation of the pump-rod, an actuating-plate, a pin carried by the pump-rod for giving said plate a swinging movement when the handle is 0perated, a pin carried by the actuating-plate for engaging the coin when inserted within the receiver whereby said receiver may be swung from its normal position by the movem ents of the actuating-plate, a throw-ofl plate having a series of notches formed therein, a pin projecting from the coin-receiver for engaging said notches, a throw-0E cylinder con nected with the lower end of the pump, a plunger fitted within said cylinder and adapted to be elevated when the pump is actuated, means connected with said plunger for actu= ating the throw-01f plate when the pressure within the cylinder has been released whereby the number of inflations for the insertion of one coin is limited, as specified.

2. In combination, a pump-barrel, a plunger fitted thereto, a rod connected with said plunger, a suitable handle carried upon the upperend of the rod for its actuation, ratchetteeth formed upon said rod, a coin-receiver, so pivoted as to normally swing inward, a pin carried by said receiver for normally preventing the actuation of the pump, an actuating-plate, a pin projecting from the pumprod for giving said plate a to-and-fro swinging movement, a pin V projecting from the actuating-plate for engaging the coin when inserted within the receiver whereby the latter may be swung outward so as to carry the locking-pin out of the line of travel of the ratchetteeth, a throw-off plate, notches formed thereon, a pin projecting from the coin-receiver adapted to engage said notches, teeth formed upon the throw-0E plate, a throw-off cylinder connected with the lower end of thepunip, a plunger fitted within said cylinder, a spring for normally holding said plunger in a lowered position, a rod carried by the plunger and terminating in a loop for engagement with the teeth formed upon the throw-oft plate, and means for connecting the throw-01f cylinder with the tires of a bicycle, as specified. In. testimony whereof I have hereunto affixed my signature in the presence of two sub scribing witnesses.

HARRY B. FARRAND. Witnessesi MARY E. HAMER, E. H. FoRsYTH. 

